Finding the Fourth Proportional to 1,490,918.40, 2,238,127.20 and 1,480,420.80
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Solution
The fourth proportional to 1,490,918.40, 2,238,127.20 and 1,480,420.80 is: 2,222,368.48
Step by Step Solution
- Step 1: Write the proportion equation
1,490,918.40 : 2,238,127.20 = 1,480,420.80 : x - Step 2: Convert to fraction form
1,490,918.40/2,238,127.20 = 1,480,420.80/x - Step 3: Cross multiply
1,490,918.40x = 2,238,127.20 × 1,480,420.80 - Step 4: Simplify right side
1,490,918.40x = 3,313,370,059,925.76 - Step 5: Solve for x
x = 3,313,370,059,925.76/1,490,918.40 - Step 6: Final answer
x = 2,222,368.48
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.